Definition
A metal or metalloid present in a material. Lead, arsenic, cadmium and mercury are screened by atomic absorption, graphite furnace and flame, and reported per element against its own reporting limit; where a screen warrants it, ICP-MS confirmation is sent to a contract laboratory.
Only the elements in the accepted scope are measured. An element that was not on the list is not reported as absent, because it was never looked for.
Related terms
About contaminant testing
Endotoxin and elemental impurities, what neither of them establishes, and the microbiological vocabulary a reader still meets elsewhere.
Bacterial endotoxinEndotoxin unitPositive product controlMaximum valid dilutionTAMC and TYMCColony-forming unitSterilityMethod blank